diff --git a/doc/test/test-data-provider/requirements.txt b/doc/test/test-data-provider/requirements.txt
index f48e2e0..a38e288 100644
--- a/doc/test/test-data-provider/requirements.txt
+++ b/doc/test/test-data-provider/requirements.txt
@@ -1,4 +1,4 @@
-lxml==4.6.2
+lxml==4.6.3
 requests==2.23.0
 tqdm==4.46.1
 absl-py==0.9.0